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首页> 外文期刊>Cell metabolism >A Neuronal Relay Mediates a Nutrient Responsive Gut/Fat Body Axis Regulating Energy Homeostasis in Adult Drosophila
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A Neuronal Relay Mediates a Nutrient Responsive Gut/Fat Body Axis Regulating Energy Homeostasis in Adult Drosophila

机译:神经元继电器介导营养响应肠/脂肪体轴调节成人果蝇的能量稳态

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摘要

The control of systemic metabolic homeostasis involves complex inter-tissue programs that coordinate energy production, storage, and consumption, to maintain organismal fitness upon environmental challenges. The mechanisms driving such programs are largely unknown. Here, we show that enteroendocrine cells in the adult Drosophila intestine respond to nutrients by secreting the hormone Bursicon alpha, which signals via its neuronal receptor DLgr2. Bursicon alpha/DLgr2 regulate energy metabolism through a neuronal relay leading to the restriction of glucagon-like, adipokinetic hormone (AKH) production by the corpora cardiaca and subsequent modulation of AKH receptor signaling within the adipose tissue. Impaired Bursicon alpha/DLgr2 signaling leads to exacerbated glucose oxidation and depletion of energy stores with consequent reduced organismal resistance to nutrient restrictive conditions. Altogether, our work reveals an intestinal/neuronal/adipose tissue inter-organ communication network that is essential to restrict the use of energy and that may provide insights into the physiopathology of endocrine-regulated metabolic homeostasis.
机译:对系统性代谢稳态的控制涉及复杂的组织间程序,可协调能量生产,储存和消费,以保持环境挑战的有机体健康。驾驶此类程序的机制在很大程度上是未知的。在这里,我们表明成人果蝇肠中的进肠内分泌细胞通过分泌激素润滑型α来应对营养素,通过其神经元受体DLGR2来发出信号。 Bursiconα/ DLGR2通过神经元继电器调节能量代谢,导致通过Corpora Cardiaca的胰高血糖素样,促进激素(AKH)产生并随后调节脂肪组织内的AKH受体信号传导。受损的Bursiconα/ DLGR2信号传导导致加剧葡萄糖氧化和能量储存的耗尽,随后具有对营养限制条件的减少的有机体抵抗力。完全,我们的工作揭示了肠道/神经元/脂肪组织间的器官通信网络,这对于限制能量的使用至关重要,并且可以为内分泌调节的代谢稳态的物理病理学提供见解。

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  • 来源
    《Cell metabolism》 |2019年第2期|共26页
  • 作者单位

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

    Univ Glasgow Inst Canc Sci Garscube Estate Switchback Rd Glasgow G61 1QH Lanark Scotland;

    Univ Glasgow Inst Canc Sci Garscube Estate Switchback Rd Glasgow G61 1QH Lanark Scotland;

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

    Univ Glasgow Inst Canc Sci Garscube Estate Switchback Rd Glasgow G61 1QH Lanark Scotland;

    CRUK Beatson Inst Garscube Estate Switchback Rd Glasgow G61 1BD Lanark Scotland;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 内分泌腺疾病及代谢病;
  • 关键词

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